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Relevant bibliographies by topics / UV-Visible light / Dissertations / Theses

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Dissertations / Theses on the topic 'UV-Visible light'

Author: Grafiati

Published: 22 June 2024

Last updated: 31 July 2025

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1

Chen, Xi. "Noble metal photocatalysts under visible light and UV light irradiation." Thesis, Queensland University of Technology, 2010. https://eprints.qut.edu.au/47008/1/Xi_Chen_Thesis.pdf.

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One of the greatest challenges for the study of photocatalysts is to devise new catalysts that possess high activity under visible light illumination. This would allow the use of an abundant and green energy source, sunlight, to drive chemical reactions. Gold nanoparticles strongly absorb both visible light and UV light. It is therefore possible to drive chemical reactions utilising a significant fraction of full sunlight spectrum. Here we prepared gold nanoparticles supported on various oxide powders, and reported a new finding that gold nanoparticles on oxide supports exhibit significant act

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2

Liu, Xiaolu. "UV and Visible Light Active Nanostructure Photocatalysts for Disinfection and Decomposition of Biohazards." Thesis, Griffith University, 2015. http://hdl.handle.net/10072/367249.

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Rapid disinfection and effective removal of biohazards from water is important and necessary for safeguarding water, due to availing public health and environmental concerns. To achieve this aim, many techniques such as ultraviolet, chlorination, ultrasonic and ozone have been widely investigated and employed, though there are many drawbacks in these methods which are becoming more problematic in the developing world. In recent decades, two advanced oxidation techniques, photocatalysis (PC) and photoelectrocatalysis (PEC), have drawn extensive attentions, as they have displayed great potential

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3

Wang, Dongsheng [Verfasser]. "Photoresponsive azobenzene/cyclodextrin supramolecular systems : from UV-light-responsive to visible-light-responsive / Dongsheng Wang." Mainz : Universitätsbibliothek Mainz, 2017. http://d-nb.info/1130618366/34.

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4

Han, Taejun. "Effect of visible and UV radiation on early sporophytes of species of the Laminariales." Thesis, University of Liverpool, 1992. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.316578.

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5

Hudaya, Tedi Chemical Sciences &amp Engineering Faculty of Engineering UNSW. "Synthesis, characterisation, and activity of novel TiO2-based photocatalysts for organic pollutant photodestruction under UV and visible-light irradiation." Publisher:University of New South Wales. Chemical Sciences & Engineering, 2008. http://handle.unsw.edu.au/1959.4/42612.

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Titania-based photocatalysts have been extensively studied for the oxidative photodestruction of organic pollutants in wastewaters, releasing non-toxic substances such as CO2, HCl, and water. However, commercial exploitation of this process is limited by the fact that titania is only active under UV irradiation (wavelength below about 388 nm), which is only less than 5% of solar light energy. Sol-gel synthesised catalyst specimens were characterised to determine the correlation between preparation conditions on morphology (XRD, SEM), optical (bandgap energy level) and physicochemical propertie

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6

Krasnow, Mark Neil. "Analysis of phenolic biosynthesis in Vitis vinifera L. cell suspension cultures to visible light, UV light, and methyl jasmonate treatments /." For electronic version search Digital dissertations database. Restricted to UC campuses. Access is free to UC campus dissertations, 2004. http://uclibs.org/PID/11984.

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7

Matallana, Surget Sabine-Astrid Biotechnology &amp Biomolecular Sciences Faculty of Science UNSW. "Physiological and molecular responses of the marine oligotrophic ultramicrobacterium Sphingopyxis Alaskensis rb2256 to visible light and ultraviolet radiation." Awarded By:University of New South Wales. Biotechnology & Biomolecular Sciences, 2009. http://handle.unsw.edu.au/1959.4/43251.

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Ultraviolet radiation reaching the Earths surface (UVR, 280-400 nm) may penetrate deep into the clear oligotrophic waters influencing a large part of the euphotic layer. Marine heterotrophic bacteria at the surface of the oceans are especially sensitive to the damaging solar radiation due to their haploid genome with little or no functional redundancy and lack of protective pigmentation. In a context of climate change and ozone depletion, it is clearly important to understand the physiology and underlying molecular UVR responses of abundant marine bacteria species. We chose the marine ultrami

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8

Newkirk, Scott Hunter. "Detection levels of drinking water contaminants using field portable ultraviolet and visible light (uv/vis) spectrophotometry /." Download the thesis in PDF, 2005. http://www.lrc.usuhs.mil/dissertations/pdf/NEWKIRK2005.pdf.

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9

Nonoyama, Akihisa. "Using Multiwavelength UV-Visible Spectroscopy for the Characterization of Red Blood Cells: An Investigation of Hypochromism." [Tampa, Fla.] : University of South Florida, 2004. http://purl.fcla.edu/fcla/etd/SFE0000508.

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10

Pelaez, Miguel. "Development of Novel Visible and Solar Light-Activated Nanostructured Nitrogen-Fluorine Titanium Dioxide Photocatalyst for the Removal of Cyanotoxins in Water." University of Cincinnati / OhioLINK, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1337958461.

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11

Granato, Stefanie [Verfasser]. "The response of silicon PNCCD sensors with aluminum on-chip filter to visible light, UV- and X-ray radiation / Stefanie Granato." Siegen : Universitätsbibliothek der Universität Siegen, 2012. http://d-nb.info/1028112769/34.

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12

Hamal, Dambar B. "Design and development of a new generation of UV-visible-light-driven nanosized codoped titanium dioxide photocatalysts and biocides/sporocides, and environmental applications." Diss., Manhattan, Kan. : Kansas State University, 2009. http://hdl.handle.net/2097/2203.

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13

Aldoori, Hussam. "Valorisation des déchets plastiques d'équipements électriques et électroniques contenant des retardateurs de flamme bromés." Electronic Thesis or Diss., Université de Lille (2022-....), 2022. http://www.theses.fr/2022ULILR053.

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L'utilisation des retardateurs de flamme bromées, tels que les polybromodiphényl éthers (PBDE), est aujourd'hui réglementée par la directive européenne RoHS en raison de leur toxicité, leur bioaccumulation et leur persistance dans l'environnement. Cependant, ces molécules toxiques se trouvent encore en grandes quantités dans les plastiques en fin de vie, notamment dans les résidus des équipements électriques et électroniques obsolètes.Par conséquent, ces déchets plastiques chargés en retardateurs de flamme bromés ne peuvent être revalorisés sans un traitement préalable garantissant l'éliminati

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14

Yuan, Xiaojiao. "Nanostructures based on conjugated polymer polypyrrole for application in photocatalysis Photocatalytic degradation of organic pollutant with polypyrrole nanostructures under UV and visible light Polypyrrole nanostructures modified with mono- and bimetallic nanoparticles for photocatalytic H2 generation Highly active composite TiO2-polypyrrole nanostructures for water and air depollution under visible light irradiation Highly Promoted Photocatalytic Hydrogen Generation by Multiple Electron Transfer Pathways Visible light-driven simultaneous water oxidationand quinone reduction by a nano-structuredconjugated polymer without co-catalysts." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASF011.

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Récemment, les nanostructures de polymères conjuguées π (CPN) ont émergé comme une nouvelle classe de catalyseurs pour diverses applications photocatalytiques comme le fractionnement de (ou photosplitting) de l’eau, la réduction du CO2, le traitement de l’eau (dégradation des polluants organiques et réduction de métaux lourds). Parmi la famille des polymères conjugués, le polypyrrole (PPy) a été le plus étudié en raison de sa stabilité environnementale, de sa synthèse facile, de son excellente stabilité. Dans cette thèse, les nanostructures PPy ont été synthétisées par différentes méthodes : p

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15

Lederhose, Paul. "From UV to NIR light, photo-triggered 1,3 dipolar cycloadditions as a modern ligation method in solution and on surface." Thesis, Queensland University of Technology, 2017. https://eprints.qut.edu.au/105356/1/Paul_Lederhose_Thesis.pdf.

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This research synthesised and explored the application of novel chemicals which can be used to create complex polymeric architectures through light irradiation. By tuning the chemical structure, this study utilized ultra-violet, visible and infra-red sources to mediate these reactions. Future applications of this technology include photolithography and design of lab-on-chip sensor materials.

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16

Sang-HsuanLu and 呂尚烜. "Synthesis and characterization of V2O5-HfO2 composite for photodegradation under UV and visible light irradiations." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/83659929211931728553.

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碩士<br>國立成功大學<br>材料科學及工程學系<br>104<br>A V2O5-HfO2-X composite photocatalyst consisting of one-dimensional high crystallinity V2O5 nanowires with surface HfO2 nanoparticles and zero-dimensional high crystallinity V2O5 nanowires with surface HfO2 nanoparticles are reported. The V2O5 nanowires and HfO2 nanoparticles were synthesized using a microwave hydrothermal method and sol-gel method, respectively. V2O5 has band gap of 2.3 eV, which absorbs visible light. The HfO2 nanoparticles were made to exhibit oxygen defect so that a sub-band structure occurs under the conduction band. We show that su

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17

"A System for In Situ UV-Visible Illumination of Transmission Electron Microscope Samples." Master's thesis, 2012. http://hdl.handle.net/2286/R.I.15192.

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abstract: A system for illuminating a sample in situ with visible and UV light inside a transmission electron microscope was devised to study photocatalysts. There are many factors which must be considered when designing and building such a system. These include both mechanical, optical, and electron optical considerations. Some of the restrictions posed by the electron microscope column are significant, and care must be taken not to degrade the microscope's electron optical performance, or to unduly restrict the other current capabilities of the microscope. The nature of these various design

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18

Lin, Hank Hui-Hsiang, and 林煇翔. "Photocatalytic oxidation of cytostatic drugs via UV and visible light responsive TiO2 in the aqueous environment." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/90938614775181246930.

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博士<br>國立臺灣大學<br>環境工程學研究所<br>103<br>Cytostatic drugs are a class of pharmaceuticals that are increasingly used in cancer therapies. However, they have genotoxic, mutagenic, carcinogenic or teratogenic effects in non target organism. They have been detected in the both effluent of the municipal and hospital wastewater treatment plants due to their stability and persistency. 5-fluorouracil and cyclophosphamide are two of the most commonly used cytostatic (antineoplastic) drugs in the world. This study applied photocatalytic oxidation to remove 5-fluorouracil and cyclophosphamide. Degussa P25 show

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19

Jia, Weidong. "Study of nifedipine photochemistry induced by visible & UV-A light in aqueous liposome dispersions and in hydrophobic media." 1996. http://hdl.handle.net/1993/19208.

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20

Shen, Yun-Hsiang, and 沈運祥. "Photocatalytic Degradation of Phenol Solution in the Presence of Au/TiO2 Catalyst under the Irradiation of UV and Visible Light." Thesis, 2011. http://ndltd.ncl.edu.tw/handle/18023769425197788250.

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碩士<br>國立臺灣大學<br>化學工程學研究所<br>99<br>The purpose of this research is to apply Au/TiO2 for the photocatalytic degradation reaction of phenol, a commonly found organic compound in industrial wastewater, and to observe the concentration profiles as well as the selectivity of the intermediates. In addition, we want to investigate whether Localized Surface Plasmon Resonance (LSPR) effect can enhance the reaction rate. This research is divided into three parts. First, we illuminated the phenol solution with 300 nm UV light only. The initial concentration of phenol solution is 250 ppm and 150 ppm,

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21

Wu, Kun. "Comparison of the mechanisms of anthraquinone and anthracycline aqueous photochemistry induced by UV-A and visible light in solutions and in large unilamellar vesicle dispersions." 1995. http://hdl.handle.net/1993/19042.

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22

Sontakke, Sharad M. "Inactivation of Microorganisms by Photocatalysis." Thesis, 2012. http://etd.iisc.ac.in/handle/2005/3141.

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Photocatalysis is an advanced oxidation process, which has shown to possess an enhanced capability to remove a wide range of contaminants. It involves the use of a semiconductor photocatalyst and a photon source. Photocatalysis has several advantages such as mild reaction conditions like ambient temperature and pressure, good control over the reaction and faster reaction kinetics. Semiconductor photocatalysts such as TiO2, ZnO, Fe2O3, CdS, ZnS, etc. absorbs light of energy greater than or equal to its band gap and the electron in the valence band gets excited to conduction band leaving behind

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23

Sontakke, Sharad M. "Inactivation of Microorganisms by Photocatalysis." Thesis, 2012. http://hdl.handle.net/2005/3141.

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Photocatalysis is an advanced oxidation process, which has shown to possess an enhanced capability to remove a wide range of contaminants. It involves the use of a semiconductor photocatalyst and a photon source. Photocatalysis has several advantages such as mild reaction conditions like ambient temperature and pressure, good control over the reaction and faster reaction kinetics. Semiconductor photocatalysts such as TiO2, ZnO, Fe2O3, CdS, ZnS, etc. absorbs light of energy greater than or equal to its band gap and the electron in the valence band gets excited to conduction band leaving behind

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24

Ahlbrink, Ralf. "Laserspektroskopie an Photosystem II Zur Proton-Elektron-Kopplung bei Tyrosin Z und über die Natur der Chlorophyll a Entität P680." Doctoral thesis, 2002. https://repositorium.ub.uni-osnabrueck.de/handle/urn:nbn:de:gbv:700-2002121215.

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"Laser flash spectroscopy of photosystem II" Photosystem II (PS II) of plants and cyanobacteria oxidizes water in a light-powered reaction. Thereby, this protein is the ultimate source of the atmospheric oxygen. The capacity to oxidize water is owed to two properties of PS II: (i) The midpoint potential of the oxidizing chlorophyll moiety is increased by 0.6 V compared to photosystem I or photochemical reaction centers of anoxygenic bacteria, and (ii) the energy requirements of the four steps needed for the tetravalent oxidation of water are adapted to the energy of red light quanta. This t

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